Introduction
============
``plone.resource`` publishes directories of static files via the ZPublisher.
These directories may be located either in the ZODB (as OFS folders and files), or on the filesystem.
Each resource directory has a type and a name. When combined, these are used to traverse to the resource directory.
For example::
/++theme++mytheme/<subpath>
/++sitelayout++mylayout/<subpath>
/++templatelayout++mylayout<subpath>
Where resources can be stored
-----------------------------
Resource directory contents can be found by the traverser in several different places.
The following locations are tried in order.
Files in the ZODB
^^^^^^^^^^^^^^^^^
Installing ``plone.resource`` creates a Zope-folder called ``portal_resources``.
It can be used to store resource directories persistently.
By convention:
- the top-level folders under this folder correspond to resource types,
- the second-level folders correspond to the resource directory name.
So, the file traversable at ``/++theme++mytheme/myfile`` could be physically located at ``some_site/++etc++site/resources/theme/mytheme``
.. TODO (XXX: provide a helper to upload a tarball/zip)
Files in Python distributions
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
A folder in a Python distribution (e.g. egg) can be registered as a resource directory of a particular type and name using the ``plone:static`` ZCML directive.
For example, this registers a directory named "theme" as a resource directory of type "theme" under the name "mytheme".
It would be accessible at ``++theme++mytheme``::
<plone:static
directory="theme"
type="theme"
name="mytheme"
/>
.. note::
You must do ``<include package="plone.resource" file="meta.zcml"/>``
before you can use the plone:static directive.
The name of the resource directory defaults to the name of the package, so can be omitted.
E.g. the following directive in a package named "mytheme" would result in the same registration as above::
<plone:static
directory="resources"
type="theme"
/>
Traversing upward in directory paths using ``..`` is not supported for security reasons, as it could allow unwanted file access.
Minimum zcml config example
^^^^^^^^^^^^^^^^^^^^^^^^^^^
::
<configure xmlns:plone="http://namespaces.plone.org/plone">
<include package="plone.resource" file="meta.zcml"/>
<plone:static
directory="resources"
type="theme"
name="myproject"
/>
</configure>
..
Files in a central resource directory
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
If the ``plone:static`` directive is used from ``site.zcml`` (i.e., with no active package in the ZCML import context),
then it may specify the absolute path to a top-level resources directory.
This directory should have the same sub-directory structure as explained above (in-ZODB resources directory):
- the top-level folders under this folder correspond to resource types,
- the second-level folders correspond to the resource directory name.
In addition, in order for resources to be available, the top-level directories *require a traverser* to be registered!
For example, the following in ``site.zcml`` registers the given path within the buildout root::
<plone:static
directory="/path/to/buildout/resources"
/>
In order to automate this at buildout time, `plone.recipe.zope2instance`_ recipe has the option ``resources``.
It injects the above zcml snippet with into ``site.zcml`` by specifying the option like this::
[instance]
...
resources = ${buildout:directory}/resources
...
Example:
Using ``plone.app.theming`` - which provides the ``++theme++`` traverser - given an image file located in filesystem at::
${buildout:directory}/resources/theme/my.project/logo.png``
This would be traversable at a URL like so::
http://localhost:8080/Plone/++theme++my.project/logo.png
.. _`plone.recipe.zope2instance`: http://pypi.python.org/pypi/plone.recipe.zope2instance
Additional traversers
---------------------
Custom traversers can be registered via ZCML using an adapter like so::
<adapter
name="demo"
for="* zope.publisher.interfaces.IRequest"
provides="zope.traversing.interfaces.ITraversable"
factory="my.project.traversal.MyTraverser"
/>
with a corresponding simple factory definition of::
from plone.resource.traversal import ResourceTraverser
class MyTraverser(ResourceTraverser):
name = 'demo'
This, when coupled with configuration like that in the `Files in a central resource directory`_ section above, would mean that resources located at::
${buildout:directory}/resources/demo/my.project/logo.png
would be traversable at a URL like so::
http://localhost:8080/Plone/++demo++my.project/logo.png
.. TODO: What types of resources can be stored
Changelog
=========
.. You should *NOT* be adding new change log entries to this file.
You should create a file in the news directory instead.
For helpful instructions, please see:
https://github.com/plone/plone.releaser/blob/master/ADD-A-NEWS-ITEM.rst
.. towncrier release notes start
3.0.2 (2024-04-23)
------------------
Bug fixes:
- Import IPloneSiteRoot from plone.base. @davisagli (#45)
3.0.1 (2024-01-22)
------------------
Internal:
- Update configuration files.
[plone devs] (047ec50d, 6e36bcc4)
3.0.0 (2023-04-27)
------------------
Breaking changes:
- Drop Plone 5.2 and Python 2 support.
[gforcada] (#6)
Internal:
- Update configuration files.
[plone devs] (2a4ba395)
2.1.4 (2021-06-14)
------------------
Bug fixes:
- Do not throw an error when traversing to a FilesystemResourceDirectory (#31)
2.1.3 (2020-09-28)
------------------
Bug fixes:
- Fixed various warnings.
[maurits] (#3130)
2.1.2 (2020-04-22)
------------------
Bug fixes:
- Minor packaging updates. (#1)
2.1.1 (2019-02-08)
------------------
Bug fixes:
- Fix deprecation and resource warnings. [gforcada] (#29)
2.1.0 (2018-11-02)
------------------
Bug fixes:
- Fix tests in py3.
[pbauer, jensens]
- Change name of IResourceDirectoryDirective to TextLine to work with zope.configuration >= 4.2.
See https://github.com/plone/Products.CMFPlone/issues/2591
[pbauer]
2.0.2 (2018-06-04)
------------------
Bug fixes:
- More Python 3 fixes.
[ale, pbauer]
2.0.1 (2018-02-05)
------------------
New features:
- Add python 2 / 3 compatibility
2.0.0 (2018-01-17)
------------------
Breaking changes:
- Remove Python2.6 support.
[ale-rt]
Bug fixes:
- Fixed 'ValueError: substring not found' in ``FilesystemResourceDirectory`` representation.
This happens when you register a directory with a name that differs from the directory name.
Visiting the ``/++theme++myname`` url would then give this error.
We also avoid listing a longer part of the path in case the directory name happens to be in the path multiple times.
[maurits]
1.2.1 (2016-12-30)
------------------
Bug fixes:
- 'unittest2' is a test dependency, make this explicit in setup.py.
[jensens]
1.2 (2016-11-09)
----------------
New features:
- Fire events on resources creation/modification
[jpgimenez, ebrehault]
1.1 (2016-10-04)
----------------
New features:
- Use ``mimetypes_registry`` utility to determine mimetype if available.
[jensens]
Bug fixes:
- Remove duplicate import
[jensens]
- Add coding headers on python files.
[gforcada]
1.0.7 (2016-09-08)
------------------
Bug fixes:
- Applied 20160830 security hotfix. [maurits]
1.0.6 (2016-08-10)
------------------
Fixes:
- Do not leave an ``.svn`` file behind when running the tests. [maurits]
- Use zope.interface decorator.
[gforcada]
1.0.5 (2016-02-26)
------------------
Fixes:
- Test fix: ``clearZCML`` was removed from ``zope.component.tests``.
[thet]
- Cleanup: PEP8, plone-coding conventions, ReST fixes, documentation
overhaul, et al.
[jensens]
1.0.4 (2015-03-21)
------------------
- use utf-8 encoding when writing more than just text/html
[vangheem]
- provides a proper __contains__ method in FilesystemResourceDirectory
[ebrehault]
1.0.3 (2014-10-13)
------------------
- security hardening: we don't want the anonymous user to look at our fs
[giacomos]
1.0.2 (2013-01-01)
------------------
- Nothing changed yet.
1.0.1 (2012-05-25)
------------------
- Make sure text/html files imported as persistent files will be
served with a utf-8 encoding. This fixes
https://dev.plone.org/ticket/12838
[davisagli]
1.0 (2012-04-15)
----------------
- Add __setitem__() support for writeable resource directories.
[optilude]
1.0b6 (2011-11-24)
------------------
- Added rename() method for writable resource directories
[optilude]
- Added cloneResourceDirectory() helper method in the utils module
[optilude]
- Add a ++unique++ resource traverser for resource directories to cache as
'plone.stableResource'.
[elro]
1.0b5 (2011-06-08)
------------------
- Ensure any files are skipped in iterDirectoriesOfType.
[elro]
1.0b4 (2011-05-29)
------------------
- Add queryResourceDirectory() helper method.
[optilude]
1.0b3 (2011-05-23)
------------------
- Fix resource directory download bug with subdirectories.
[elro]
1.0b2 (2011-05-16)
------------------
- Add a more compatible filestream iterator for filesystem files that allows
coercion to string or unicode. This fixes possible compatibility issues
with resource merging through Resource Registries.
[optilude]
1.0b1 (2011-04-22)
------------------
- Initial release
Raw data
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"author": "David Glick, Plone Foundation",
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"description": "Introduction\n============\n\n``plone.resource`` publishes directories of static files via the ZPublisher.\nThese directories may be located either in the ZODB (as OFS folders and files), or on the filesystem.\n\nEach resource directory has a type and a name. When combined, these are used to traverse to the resource directory.\nFor example::\n\n /++theme++mytheme/<subpath>\n /++sitelayout++mylayout/<subpath>\n /++templatelayout++mylayout<subpath>\n\n\nWhere resources can be stored\n-----------------------------\n\nResource directory contents can be found by the traverser in several different places.\nThe following locations are tried in order.\n\nFiles in the ZODB\n^^^^^^^^^^^^^^^^^\n\nInstalling ``plone.resource`` creates a Zope-folder called ``portal_resources``.\nIt can be used to store resource directories persistently.\nBy convention:\n\n- the top-level folders under this folder correspond to resource types,\n- the second-level folders correspond to the resource directory name.\n\nSo, the file traversable at ``/++theme++mytheme/myfile`` could be physically located at ``some_site/++etc++site/resources/theme/mytheme``\n\n.. TODO (XXX: provide a helper to upload a tarball/zip)\n\n\nFiles in Python distributions\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nA folder in a Python distribution (e.g. egg) can be registered as a resource directory of a particular type and name using the ``plone:static`` ZCML directive.\nFor example, this registers a directory named \"theme\" as a resource directory of type \"theme\" under the name \"mytheme\".\nIt would be accessible at ``++theme++mytheme``::\n\n <plone:static\n directory=\"theme\"\n type=\"theme\"\n name=\"mytheme\"\n />\n\n .. note::\n You must do ``<include package=\"plone.resource\" file=\"meta.zcml\"/>``\n before you can use the plone:static directive.\n\nThe name of the resource directory defaults to the name of the package, so can be omitted.\nE.g. the following directive in a package named \"mytheme\" would result in the same registration as above::\n\n <plone:static\n directory=\"resources\"\n type=\"theme\"\n />\n\nTraversing upward in directory paths using ``..`` is not supported for security reasons, as it could allow unwanted file access.\n\nMinimum zcml config example\n^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\n::\n\n <configure xmlns:plone=\"http://namespaces.plone.org/plone\">\n <include package=\"plone.resource\" file=\"meta.zcml\"/>\n <plone:static\n directory=\"resources\"\n type=\"theme\"\n name=\"myproject\"\n />\n </configure>\n\n ..\n\nFiles in a central resource directory\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\nIf the ``plone:static`` directive is used from ``site.zcml`` (i.e., with no active package in the ZCML import context),\nthen it may specify the absolute path to a top-level resources directory.\n\nThis directory should have the same sub-directory structure as explained above (in-ZODB resources directory):\n\n- the top-level folders under this folder correspond to resource types,\n- the second-level folders correspond to the resource directory name.\n\nIn addition, in order for resources to be available, the top-level directories *require a traverser* to be registered!\n\nFor example, the following in ``site.zcml`` registers the given path within the buildout root::\n\n <plone:static\n directory=\"/path/to/buildout/resources\"\n />\n\nIn order to automate this at buildout time, `plone.recipe.zope2instance`_ recipe has the option ``resources``.\nIt injects the above zcml snippet with into ``site.zcml`` by specifying the option like this::\n\n [instance]\n ...\n resources = ${buildout:directory}/resources\n ...\n\nExample:\nUsing ``plone.app.theming`` - which provides the ``++theme++`` traverser - given an image file located in filesystem at::\n\n ${buildout:directory}/resources/theme/my.project/logo.png``\n\nThis would be traversable at a URL like so::\n\n http://localhost:8080/Plone/++theme++my.project/logo.png\n\n.. _`plone.recipe.zope2instance`: http://pypi.python.org/pypi/plone.recipe.zope2instance\n\nAdditional traversers\n---------------------\n\nCustom traversers can be registered via ZCML using an adapter like so::\n\n <adapter\n name=\"demo\"\n for=\"* zope.publisher.interfaces.IRequest\"\n provides=\"zope.traversing.interfaces.ITraversable\"\n factory=\"my.project.traversal.MyTraverser\"\n />\n\nwith a corresponding simple factory definition of::\n\n from plone.resource.traversal import ResourceTraverser\n class MyTraverser(ResourceTraverser):\n name = 'demo'\n\nThis, when coupled with configuration like that in the `Files in a central resource directory`_ section above, would mean that resources located at::\n\n ${buildout:directory}/resources/demo/my.project/logo.png\n\nwould be traversable at a URL like so::\n\n http://localhost:8080/Plone/++demo++my.project/logo.png\n\n.. TODO: What types of resources can be stored\n\n\nChangelog\n=========\n\n.. You should *NOT* be adding new change log entries to this file.\n You should create a file in the news directory instead.\n For helpful instructions, please see:\n https://github.com/plone/plone.releaser/blob/master/ADD-A-NEWS-ITEM.rst\n\n.. towncrier release notes start\n\n3.0.2 (2024-04-23)\n------------------\n\nBug fixes:\n\n\n- Import IPloneSiteRoot from plone.base. @davisagli (#45)\n\n\n3.0.1 (2024-01-22)\n------------------\n\nInternal:\n\n\n- Update configuration files.\n [plone devs] (047ec50d, 6e36bcc4)\n\n\n3.0.0 (2023-04-27)\n------------------\n\nBreaking changes:\n\n\n- Drop Plone 5.2 and Python 2 support.\n [gforcada] (#6)\n\n\nInternal:\n\n\n- Update configuration files.\n [plone devs] (2a4ba395)\n\n\n2.1.4 (2021-06-14)\n------------------\n\nBug fixes:\n\n\n- Do not throw an error when traversing to a FilesystemResourceDirectory (#31)\n\n\n2.1.3 (2020-09-28)\n------------------\n\nBug fixes:\n\n\n- Fixed various warnings.\n [maurits] (#3130)\n\n\n2.1.2 (2020-04-22)\n------------------\n\nBug fixes:\n\n\n- Minor packaging updates. (#1)\n\n\n2.1.1 (2019-02-08)\n------------------\n\nBug fixes:\n\n\n- Fix deprecation and resource warnings. [gforcada] (#29)\n\n\n2.1.0 (2018-11-02)\n------------------\n\nBug fixes:\n\n- Fix tests in py3.\n [pbauer, jensens]\n\n- Change name of IResourceDirectoryDirective to TextLine to work with zope.configuration >= 4.2.\n See https://github.com/plone/Products.CMFPlone/issues/2591\n [pbauer]\n\n2.0.2 (2018-06-04)\n------------------\n\nBug fixes:\n\n- More Python 3 fixes.\n [ale, pbauer]\n\n\n2.0.1 (2018-02-05)\n------------------\n\nNew features:\n\n- Add python 2 / 3 compatibility\n\n\n2.0.0 (2018-01-17)\n------------------\n\nBreaking changes:\n\n- Remove Python2.6 support.\n [ale-rt]\n\nBug fixes:\n\n- Fixed 'ValueError: substring not found' in ``FilesystemResourceDirectory`` representation.\n This happens when you register a directory with a name that differs from the directory name.\n Visiting the ``/++theme++myname`` url would then give this error.\n We also avoid listing a longer part of the path in case the directory name happens to be in the path multiple times.\n [maurits]\n\n\n1.2.1 (2016-12-30)\n------------------\n\nBug fixes:\n\n- 'unittest2' is a test dependency, make this explicit in setup.py.\n [jensens]\n\n\n1.2 (2016-11-09)\n----------------\n\nNew features:\n\n- Fire events on resources creation/modification\n [jpgimenez, ebrehault]\n\n\n1.1 (2016-10-04)\n----------------\n\nNew features:\n\n- Use ``mimetypes_registry`` utility to determine mimetype if available.\n [jensens]\n\nBug fixes:\n\n- Remove duplicate import\n [jensens]\n\n- Add coding headers on python files.\n [gforcada]\n\n1.0.7 (2016-09-08)\n------------------\n\nBug fixes:\n\n- Applied 20160830 security hotfix. [maurits]\n\n\n1.0.6 (2016-08-10)\n------------------\n\nFixes:\n\n- Do not leave an ``.svn`` file behind when running the tests. [maurits]\n\n- Use zope.interface decorator.\n [gforcada]\n\n\n1.0.5 (2016-02-26)\n------------------\n\nFixes:\n\n- Test fix: ``clearZCML`` was removed from ``zope.component.tests``.\n [thet]\n\n- Cleanup: PEP8, plone-coding conventions, ReST fixes, documentation\n overhaul, et al.\n [jensens]\n\n\n1.0.4 (2015-03-21)\n------------------\n\n- use utf-8 encoding when writing more than just text/html\n [vangheem]\n\n- provides a proper __contains__ method in FilesystemResourceDirectory\n [ebrehault]\n\n\n1.0.3 (2014-10-13)\n------------------\n\n- security hardening: we don't want the anonymous user to look at our fs\n [giacomos]\n\n\n1.0.2 (2013-01-01)\n------------------\n\n- Nothing changed yet.\n\n\n1.0.1 (2012-05-25)\n------------------\n\n- Make sure text/html files imported as persistent files will be\n served with a utf-8 encoding. This fixes\n https://dev.plone.org/ticket/12838\n [davisagli]\n\n1.0 (2012-04-15)\n----------------\n\n- Add __setitem__() support for writeable resource directories.\n [optilude]\n\n1.0b6 (2011-11-24)\n------------------\n\n- Added rename() method for writable resource directories\n [optilude]\n\n- Added cloneResourceDirectory() helper method in the utils module\n [optilude]\n\n- Add a ++unique++ resource traverser for resource directories to cache as\n 'plone.stableResource'.\n [elro]\n\n1.0b5 (2011-06-08)\n------------------\n\n- Ensure any files are skipped in iterDirectoriesOfType.\n [elro]\n\n1.0b4 (2011-05-29)\n------------------\n\n- Add queryResourceDirectory() helper method.\n [optilude]\n\n1.0b3 (2011-05-23)\n------------------\n\n- Fix resource directory download bug with subdirectories.\n [elro]\n\n1.0b2 (2011-05-16)\n------------------\n\n- Add a more compatible filestream iterator for filesystem files that allows\n coercion to string or unicode. This fixes possible compatibility issues\n with resource merging through Resource Registries.\n [optilude]\n\n1.0b1 (2011-04-22)\n------------------\n\n- Initial release\n",
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